71369720

素因数分解:

$2^3\times 5^1\times {\mathrm{1784243}}^1$

素因数の和:1784254

約数の個数: 16

約数和(自身を含む): 160581960

約数和(自身を除く): 89212240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1784243, 3568486, 7136972, 8921215, 14273944, 17842430, 35684860, 71369720]

約数ペア:

[(1, 71369720), (2, 35684860), (4, 17842430), (5, 14273944), (8, 8921215), (10, 7136972), (20, 3568486), (40, 1784243)]